[Bladder hernia: report of two cases].

Case 1. A 55-year-old male visited our hospital complaining of dysuria and two-staged micturition. Physical examination revealed a fist sized, elastic soft mass in the left inguinal region. Upright drip infusion pyelography (DIP) showed left inguinal hernia of the bladder. Retrograde urethrography showed bladder neck contracture and a diverticulum. Cystoscopy revealed a indentation in the left bladder wall. Urodynamic studies demonstrated organic obstruction in the lower urinary tract. From these findings, diagnosis was made as bladder hernia and bladder neck contracture. Resection of thin portion of the bladder wall and hernia repair, accompanied by prostatectomy, was performed. Case 2. A 37-year-old male visited our hospital with the history of ureteral stone and chronic prostatitis. Upright DIP incidentally revealed the small right inguinal bladder hernia. Because he had no complaint of dysuria and two-staged micturition, he was observed without surgical treatment.